Atomizer.



J. S. THURMAN.

ATOMIZER. I APPLICATIDH FILED SEPT. 7, 1909.

Patented Ja11.31,1911.

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INVLNTOR r 0hr? S'ThU/W/I BY I . ATII'OIENEY.

J. S. THURMAiN.

ATOMIZER.

' APPLICATION FILED SEPT. 7, 1909. 982,903 Patented Jan. 31,1911.

2 SHEETS-SHEET 2.

I more fully fully assembled; 'the line 3-3 of Fig. '2

m g or blast nozzle,

device may be readily JOHN S. THIJRMAN, OF ST. LOUIS, MISSOURI.

ATOMIZER.

To all whom it may concern:

Be it known that I, JOHN S. THURMAN, citizen of the United States, residing at St. Louis, State of Missouri, have invented certain new and useful Improvements in Atomizers, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention has relation to improvements in pneumatic atomizers; and it con sists' in the novel details of construction set forth in the specification and pointed out in the claims.

In the drawings, Figure 1 is a perspective showing my invention as actually applied; Fig. 2 is a side elevation of the atomizer Fig. 3 is a cross-section on taken through the container or holder; ,Fig. -l is a vertical middle cross-section on the line 4-.-et of Fig.- 2, with the air valve however rocked to open position; Fig. 5 is a plan of the blowparts broken away; Fig. 6 is a section on the line 6-6 of Fig. l; and Fig. 7 is an gnd view of the spray head.

1e present invention is intended to be used as an accessory in pneumatic'cleaning systems, s'ubservinp the. purpose of disinfecting fabrics, curtains, carpets,upholstered furniture and the like, and of removing grease spots, the n'laterial employed being either liquid or powder, (though preferably-liquid), which is sprayed against the object treated by means of a current of air derived from the exhaust of a vacuum pump, or produced directly by an or pump, a jet, or equivalent means. The

attached to, or (ictached from the hose traversed by the im pelling current referred to.

The object of the'inventionis to provide an apparatus which will spray the disinfectant, or grease remover over an extended surface, and with sufficient force to pene: trate (if necessary) the article treated, so thatthe operation may be as thorough as possible.

A further object is to provide an atomizer which can be easily handled and requires a.

minimum amount of attention, and one possessmg turther'aud other advantages better air compressor" Specification 01 Letters Patent. Application filer: September- 7, 1909. Serial No. 516,4t32.

Patented Jan. 31, 1911.

apparent from a detailed description of the invention which is as follows:

Referring to the drawings, H, represents a hose. or air-line through which flows a current of air under pressure derived from any of the sources usually employed in vacuum and compressed-air cleaning systems, the free end of the hose having coupled thereto a blowing or blast-nozzle 1 terminating at one end in a spray-head 2 having acurved discharge mouth m widest at the middle and gradually tapering toward the .ends.

This form of mouth insures a diffusion of the sprayed material over a maximum surface.

0, represents a cylindrical reservoir or container havin glass walls, and provided with metal hea s tied by means of tie-bolts t as well understood in the art, the upper head having a central opening normally closed by a screw-plug 3, carrying a hand disk 4, upon removal of which plug the vessel may be filled with the desired liquid or powder) to be sprayed. The bottom .head of the. container is provided wit-l1 a central hollow boss 5 which screws over the upper threaded stud 6 of the body portion or main casting B of the atomizer. In the boss 5 are formed two openings or passage ways a and b respectively, the former l1aving inserted thereinto an equalizing'tnbe 7, bent so as to be liquid poured into the latter is being filled. the the-tube reaching above the surface of the liquid in the reservoir. The passage-Way it continues downward at an incline, the lower end thereof being controlled by a cock or roclcvalve V terminating in an operating handle 8, the valve being provided with a longitudinal passage 0 terminating at its forward end in a leg or port d, .which, for a given turn of the valve V in proper di-' rection may be brought into communication with the passage a (Fig. 4). The rear or inner end of the passage 0 opens into the chamber c forming a continuation of the bore in which the valve V is mounted, said chamber (2 being intersected byfthe vertical discharge passages j and g leading from the bottom of the horizontal cylindrical drip-chamber 9 formed in the body Rabove out of the range of the.

-a handle 18' for purposes of manipulation.

The valve 12 controls the eoniniunication between the passage 2' and the vertical drippassage 7.: leading from the inner end of said passage 2' through the roof or top of'the drip-chamber 9. From the passage in depends a drip nozzle 14 so as to drop the liquid directly over the upper open ends of the passages f, 1 The passages f, g open at the bottom at the base of a screw-stud 15 which screws into a hollow boss 16 formed on the blowing nozzle 1.

The parts being assembled (Fig. 2) the operation is as follows :-Assuming that the container C has been filled with liquid to a level below the upper end of the tube 7 and the nozzle 1 has been attached to the air hose H. Thereupon the valve V is rocked through the requlred angle tobring the passage a into communication with port d (Fig. 4:). This allows 'free communication between the space above the liquid in the container C and thepassage of the nozzle 1,

through the passages f, g, chamber 6, pas

sages c, d, a, and tube 7 and whatever he the pressure at which the air is passing through the hose H and nozzle 1 in its flow toward the mouth m of the ray-head 2, such pressure will be communicated to the space above the liquid in thecontainer C, so that we have approximately the same pressure in the container 0 above the liquid we have in the blast-nozzle 1. The pncumaticpressure in the nozzle 1 is however, likewisecommunicated to the dripchainber 9through the passages f and g, which same pressure is in turn communicated to the bottom of the liquid in the container, the momentfree communication is established between the chamber 9 and passage 6 leading from the bottom of the container. This free communication of course, is elfected by unscrewing the valve 12 sutliciently to make a continuous open passage-Way between the parts I), k, z and 70 (Fig. 4). This done, the pressures below and above the liquid are equalized and the" liquid (released by the feed-valve 12) flows by gravity into the drip-chamber 9 and thence through the passages and 9 directly into-the passage of the blast nozzel 1. The air in the blast nozzle 1 while free to communicate with the space above the liquid through the equalizing tube 7, and passages f, g, e, 0, d and a as described, the presence of the air in the passages f, 9 does not interfere with the downward flow of the liquid'through'thein into the nozzle 1. By having two independent passages f, g, the air 'would probably be con'- fined to one of the .passages in'its flowto the tube 7, thus leaving the liquid free to avail itself of the other passa e. By thus having two passage-ways f, g, eading from the drip-chamber 9, the danger of imperfect delivery of the liquid is entirely eliminated,

and a certain flow is invariably 'the result. As the liquid falls into the passage-way of the nozzle 1, the rushin current carries it along into the spray-hes 2 from the mouth in of which it then rojects and blows it out in a fan-shaped slieet, the fan-shape of the spray resulting. from the general flare walls of the mouth, said convexity being in a plane at right angles to the general plane of disposition of the head.

In lieu of liquid, the container may conof the head 2, and from the outwardly bowed formation or convei'rity' of the bounding tain any form of free-flowing powder which may be} s rayed against the article to be disinfecte or cleansed.

Of course, the liquid (or powder) enters.

or drops into ,the passage of the blast'nozzle in comparatively limited quantities, so that a spraying of the same is possible when pro- 4 -jected through the mouth m by the current traversing the nozzle.

Having described my invention, what I claim is p p 1. An atomizer comprising abody por-- tion, a liquid reservoir at one end thereof provided with an upper central filling open ing, a blast nozzle at the opposite end, thebody portion being provided with a. valve-' controlled passage opening into the bottom of the reservoir neanthe' center thereof, an equalizing tube extendin from said passage through and (hove the iquid in the reser' voir and bent out of range of the filling opening, a drip-chamber formed in the body portion contiguous to said passage, suitable passages leading from the chamber to the passage of the blast nozzle and being adapt-- ed to be brought into communication with the valve-controlled passage aforesaid, an independent valve-controlled passage being formed in the body portion between the drip-chamber and the bottom of the reservoir, the parts operating substantially as and for the purpose set forth.

2. An atomizer comprising a body portion, a'liquid reservoir-on one side, and a blast nozzle on-the opposite side, a valvecontrolled assage in' the body portion establishing mtercommunication between the passage of the. nozzle and the space above the liquid, a drip-chem i r in the body portion, a valve-controlled iquid-feed passage between the driprhamber and reservoir, the

the liquid mm the drip-chamber to the passage of the blast-nozz1e.

ture, in presence of two witnesses.

.JNOJ S. THURMAN.

Witnesses:

EMIL Sung, Jos. A. MICHEL.

bon- In testimony whereof'I affix my signa- 

